1//===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file declares the SPARC specific subclass of TargetSubtargetInfo.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H
14#define LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H
15
16#include "MCTargetDesc/SparcMCTargetDesc.h"
17#include "SparcFrameLowering.h"
18#include "SparcISelLowering.h"
19#include "SparcInstrInfo.h"
20#include "llvm/CodeGen/TargetSubtargetInfo.h"
21#include "llvm/IR/DataLayout.h"
22#include "llvm/Support/ErrorHandling.h"
23#include "llvm/TargetParser/Triple.h"
24
25#define GET_SUBTARGETINFO_HEADER
26#include "SparcGenSubtargetInfo.inc"
27
28namespace llvm {
29class StringRef;
30
31class SparcSubtarget : public SparcGenSubtargetInfo {
32 // ReserveRegister[i] - Register #i is not available as a general purpose
33 // register.
34 BitVector ReserveRegister;
35
36 virtual void anchor();
37
38#define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER) \
39 bool ATTRIBUTE = DEFAULT;
40#include "SparcGenSubtargetInfo.inc"
41
42 SparcInstrInfo InstrInfo;
43 SparcTargetLowering TLInfo;
44 std::unique_ptr<const SelectionDAGTargetInfo> TSInfo;
45 SparcFrameLowering FrameLowering;
46
47public:
48 SparcSubtarget(const StringRef &CPU, const StringRef &TuneCPU,
49 const StringRef &FS, const TargetMachine &TM);
50
51 ~SparcSubtarget() override;
52
53 const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; }
54 const TargetFrameLowering *getFrameLowering() const override {
55 return &FrameLowering;
56 }
57 const SparcRegisterInfo *getRegisterInfo() const override {
58 return &InstrInfo.getRegisterInfo();
59 }
60 const SparcTargetLowering *getTargetLowering() const override {
61 return &TLInfo;
62 }
63
64 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override;
65
66 void initLibcallLoweringInfo(LibcallLoweringInfo &Info) const override;
67
68 bool enableMachineScheduler() const override;
69
70#define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER) \
71 bool GETTER() const { return ATTRIBUTE; }
72#include "SparcGenSubtargetInfo.inc"
73
74 /// ParseSubtargetFeatures - Parses features string setting specified
75 /// subtarget options. Definition of function is auto generated by tblgen.
76 void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
77 SparcSubtarget &initializeSubtargetDependencies(StringRef CPU,
78 StringRef TuneCPU,
79 StringRef FS);
80
81 /// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
82 /// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
83 int64_t getStackPointerBias() const {
84 return is64Bit() ? 2047 : 0;
85 }
86
87 bool isRegisterReserved(MCPhysReg PhysReg) const {
88 return ReserveRegister[PhysReg];
89 }
90
91 /// Given a actual stack size as determined by FrameInfo, this function
92 /// returns adjusted framesize which includes space for register window
93 /// spills and arguments.
94 int getAdjustedFrameSize(int stackSize) const;
95};
96
97} // end namespace llvm
98
99#endif
100